first commit

2026-10-04 00:19:45 +03:00
commit 05f1c9ec6b
93 changed files with 10782 additions and 0 deletions
@@ -0,0 +1,126 @@
+<?php
+/**
+ * Database Configuration
+ * Production fitness tracking app database connection
+ */
+
+class Database {
+    private static $instance = null;
+    private $connection;
+
+    private $db_host = 'localhost';
+    private $db_user = 'fitness_app_user';
+    private $db_pass = 'your_secure_password_here';
+    private $db_name = 'fitness_app';
+    private $db_port = 3306;
+
+    private function __construct() {
+        try {
+            $this->connection = new mysqli(
+                $this->db_host,
+                $this->db_user,
+                $this->db_pass,
+                $this->db_name,
+                $this->db_port
+            );
+
+            // Check connection
+            if ($this->connection->connect_error) {
+                throw new Exception('Database connection failed: ' . $this->connection->connect_error);
+            }
+
+            // Set charset
+            $this->connection->set_charset('utf8mb4');
+
+            // Enable error reporting
+            mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
+
+        } catch (Exception $e) {
+            error_log('Database Error: ' . $e->getMessage());
+            http_response_code(500);
+            die(json_encode(['error' => 'Database connection failed']));
+        }
+    }
+
+    /**
+     * Singleton instance getter
+     */
+    public static function getInstance() {
+        if (self::$instance === null) {
+            self::$instance = new self();
+        }
+        return self::$instance;
+    }
+
+    /**
+     * Get connection
+     */
+    public function getConnection() {
+        return $this->connection;
+    }
+
+    /**
+     * Prepare and execute query
+     */
+    public function prepare($query) {
+        return $this->connection->prepare($query);
+    }
+
+    /**
+     * Escape string
+     */
+    public function escape($string) {
+        return $this->connection->real_escape_string($string);
+    }
+
+    /**
+     * Close connection
+     */
+    public function close() {
+        if ($this->connection) {
+            $this->connection->close();
+        }
+    }
+
+    /**
+     * Begin transaction
+     */
+    public function beginTransaction() {
+        $this->connection->begin_transaction();
+    }
+
+    /**
+     * Commit transaction
+     */
+    public function commit() {
+        $this->connection->commit();
+    }
+
+    /**
+     * Rollback transaction
+     */
+    public function rollback() {
+        $this->connection->rollback();
+    }
+
+    /**
+     * Get last inserted ID
+     */
+    public function getLastInsertId() {
+        return $this->connection->insert_id;
+    }
+
+    /**
+     * Get affected rows
+     */
+    public function getAffectedRows() {
+        return $this->connection->affected_rows;
+    }
+}
+
+// Prevent cloning
+final class SingletonDatabase extends Database {
+    private function __clone() {}
+    private function __wakeup() {}
+}
+?>